201111042323 has 2 divisors, whose sum is σ = 201111042324. Its totient is φ = 201111042322.

The previous prime is 201111042299. The next prime is 201111042331. The reversal of 201111042323 is 323240111102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201111042323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201111042295 and 201111042304.

It is not a weakly prime, because it can be changed into another prime (201111045323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100555521161 + 100555521162.

It is an arithmetic number, because the mean of its divisors is an integer number (100555521162).

Almost surely, 2^201111042323 is an apocalyptic number.

201111042323 is a deficient number, since it is larger than the sum of its proper divisors (1).

201111042323 is an equidigital number, since it uses as much as digits as its factorization.

201111042323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 201111042323 its reverse (323240111102), we get a palindrome (524351153425).

The spelling of 201111042323 in words is "two hundred one billion, one hundred eleven million, forty-two thousand, three hundred twenty-three".